CN110858729A - Motor assembly and washing machine - Google Patents
Motor assembly and washing machine Download PDFInfo
- Publication number
- CN110858729A CN110858729A CN201810912054.3A CN201810912054A CN110858729A CN 110858729 A CN110858729 A CN 110858729A CN 201810912054 A CN201810912054 A CN 201810912054A CN 110858729 A CN110858729 A CN 110858729A
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- stator
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- rotor
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- washing machine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Textile Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor assembly and a washing machine, wherein the motor assembly comprises: the motor comprises a motor stator and a motor rotor, wherein the motor stator comprises a plurality of stator modules which are spliced along the circumferential direction, the stator modules are provided with first connecting interfaces, and the motor rotor is sleeved on the inner side of the motor stator; the installation cavity is provided with an installation port adaptive to the motor and used for accommodating the motor, a transmission rotating shaft driven by the motor rotor is arranged in the installation cavity, a second connection interface used for positioning the stator module is arranged on the inner wall of the installation cavity, and an absolute magnetic fixing piece is used for fixing the stator module through the absolute magnetic fixing piece after the first connection interface is matched with the second connection interface to assemble the stator module on the inner wall, wherein the diameter of the installation port is larger than the outer diameter of the motor rotor. Through the technical scheme of the invention, the assembly mode that the inner rotor motor is arranged in the installation cavity is realized, and the installation and the application of the inner rotor motor on electric equipment such as a washing machine and the like are further realized.
Description
Technical Field
The invention relates to the field of motors, in particular to a motor assembly and a washing machine.
Background
The current common installation form of the direct drive motor of the washing machine is shown in fig. 1, the motor adopts an outer rotor configuration, a spline is arranged on a transmission rotating shaft 112 of a motor rotor 104, the spline of the rotor is directly clamped on the spline and then axially fixed by a rotor fixing bolt 102, and a motor stator 108 is directly fixed on a washing machine outer barrel 110 of a washing machine body 114 by an axial stator fixing bolt 106.
During maintenance, firstly, the rotor bolt is unscrewed, the rotor covering the stator is taken down, then the stator bolt is unscrewed, the stator is taken down, the maximum size of the opening of the back plate of the washing machine is determined by the maximum outer diameter of the motor, and the motor mounting mode has the following defects:
(1) the motor is only suitable for an outer rotor motor, the maximum outer diameter of the motor is smaller than the aperture of the opening on the back of the washing machine, and the requirement on the radial size of the motor is high;
(2) if the motor stator has faults, such as the insulation groove is damaged, the whole motor stator needs to be replaced, and the maintenance cost is high;
(3) when the washing machine has a large capacity, the motor has a large outer diameter, resulting in an increase in weight response, which increases the manufacturing cost and also causes inconvenience in transportation and storage of spare parts.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a motor assembly.
Another object of the present invention is to provide a washing machine.
In order to achieve the above object, an aspect of the present invention provides a motor assembly, including: the motor comprises a motor stator and a motor rotor, wherein the motor stator comprises a plurality of stator modules which are spliced along the circumferential direction, the stator modules are provided with first connecting interfaces, and the motor rotor is sleeved on the inner side of the motor stator; the installation cavity is provided with an installation port adaptive to the motor and used for accommodating the motor, a transmission rotating shaft driven by the motor rotor is arranged in the installation cavity, a second connection interface used for positioning the stator module is arranged on the inner wall of the installation cavity, and an absolute magnetic fixing piece is used for fixing the stator module through the absolute magnetic fixing piece after the first connection interface is matched with the second connection interface to assemble the stator module on the inner wall, wherein the diameter of the installation port is larger than the outer diameter of the motor rotor.
In this technical scheme, install the motor in the installation cavity, the motor is the inner rotor motor, the stator of motor is arranged by a plurality of stator modules of splicing along circumference and forms, electric rotor fixes on the transmission pivot, after electric stator circular telegram, electric rotor is rotatory in the drive of electromagnetic field, and then drive the transmission pivot and rotate, because electric stator includes a plurality of stator modules, and stator module can be through the cooperation of the first connection interface that self set up with the second connection interface in the installation cavity, assemble in the installation cavity, the equipment mode of installing the inner rotor motor in the installation cavity has been realized, and then installation and the application of inner rotor motor on electric equipment such as washing machine have been realized.
The inner rotor motor can be a radial flux motor, a transverse flux motor and the like according to different winding modes of the stator winding.
In addition, the motor assembly in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, preferably, the plurality of stator modules are formed by splicing and assembling any two adjacent stator modules.
In the technical scheme, through setting up the stator module to independent part structure, all be provided with first connection interface on every stator module, it is fixed and the equipment between stator module and the installation cavity is fixed to realize the equipment between the stator module through first connection interface, compare with the mode of the whole equipment of motor stator in the installation cavity among the prior art, when motor stator breaks down, because be detachable each other between the stator module, only need to change trouble stator module can, need not wholly change motor stator, on the one hand, be favorable to reducing cost of maintenance, on the other hand, adopt modular stator structure, when setting up each stator module isomorphism, can also save the weight and the volume of spare part, bring the facility for maintenance and spare part transportation storage, also can realize the reduction of cost.
The two adjacent stator modules can have a connection relationship, and can also be respectively fixed in the fixed cavity under the condition of no connection relationship.
In any of the above technical solutions, preferably, the first connection interface includes a first connection tab and a second connection tab respectively disposed at two circumferential ends of the stator module, the first connection tab and the second connection tab are located on different circumferential surfaces, and the first connection tab and the second connection tab are respectively provided with a radial closed through hole, wherein when two stator modules are spliced with each other, two adjacent first connection tabs and second connection tabs can be overlapped and attached along a radial direction, and the two closed through holes are aligned concentrically, and the magnetism-insulating fixing member extends to the second connection interface to fix the stator modules after passing through the closed through holes along the radial direction.
In the technical scheme, as a splicing mode of two stator modules, the first connecting interface comprises two connecting lugs which are respectively arranged at two ends of the stator modules, namely a first connecting lug and a second connecting lug, because the first connecting lug and the second connecting lug are arranged on different circumferential surfaces, when the two stator modules are spliced with each other, two adjacent first connecting lugs and second connecting lugs can be overlapped together along the radial direction and are mutually attached and arranged, after the two adjacent first connecting lugs are attached, the closed through hole on the first connecting lug and the closed through hole on the second connecting lug are mutually overlapped to be used as a mounting hole of the insulating fixing piece, the insulating fixing piece extends into the second connecting interface through the mounting hole and is locked, the outer stator structure is assembled in the mounting cavity in the form of the stator module, on the one hand, the first connecting lug and the second connecting lug are radially overlapped and then are mounted in the mounting cavity, under the prerequisite of guaranteeing motor normal operating, be favorable to promoting motor stator's installation intensity, on the other hand, insulating mounting can be along radial installation, consequently receives the installation cavity and the radial dimension's of installing port influence less, and the stator module is bigger than the installing port promptly, also can be less than the installing port.
Wherein, as can be understood by those skilled in the art, the closed through hole can be a regular circular structure matched with the magnetism-insulating fixing piece, and can also be an oblong structure, a square structure or other irregular hole structures.
In any one of the above technical solutions, preferably, the first connection tab and the second connection tab are disposed outside an inner annular surface of the stator module.
The sum of the thicknesses of the first connecting lug and the second connecting lug is less than or equal to the radial thickness of the stator module.
In the technical scheme, the first connecting lug and the second connecting lug are arranged on the outer side of the inner ring surface of the stator module, so that the first connecting lug and/or the second connecting lug are prevented from protruding out of the inner ring surface of the stator module, and the interference on the operation of the motor rotor is avoided.
In any of the above claims, preferably the stator yoke comprises an arcuate stator yoke; the radian of each of the first connecting lug and the second connecting lug is smaller than that of the arc-shaped stator yoke.
In this technical scheme, the radian through injecing first auricle is less than the radian of arc stator yoke portion to and the radian of second auricle is less than the radian of arc stator yoke portion, to prevent that the radian of two auricles of connecing is too big to lead to the size of arc stator yoke portion to be short, and then cause the influence to stator winding.
Preferably, the arc of the first connecting tab is the same as the arc of the second connecting tab.
In any of the above technical solutions, preferably, the first connection interface includes third connection lugs respectively disposed at two circumferential ends of the stator module, and a radial semicircular hole is disposed at an edge of the third connection lug, wherein when the two stator modules are spliced with each other, adjacent semicircular holes can be correspondingly spliced to form a closed through hole, and the magnetism-insulating fixing member radially penetrates through the closed through hole and then extends to the second connection interface to fix the stator module.
In this technical scheme, as another kind of concatenation mode of two stator modules, set up two the same but opposite direction's of structure third connection auricle respectively at the both ends of stator module, when two stator modules splice along circumference, two third connection auricles dock each other to form and piece into a circular shape closed through-hole by two semicircle orifices, compare with the above-mentioned mode that adopts first connection auricle and second connection auricle superpose, when the distance between two stator modules is the same, can be favorable to reducing motor stator's whole quality.
In any of the above technical solutions, preferably, the third connection tab is disposed between the inner annular surface and the outer annular surface of the stator module; and a thickness of the third connecting tab is less than or equal to a radial thickness of the stator module.
In this technical scheme, through setting up the third connection lug piece between stator module's interior anchor ring and outer anchor ring, on the one hand, prevent that the third connection lug piece from protruding in stator module's interior anchor ring, cause the interference to electric motor rotor's operation, on the other hand is favorable to attenuate the thickness of third connection lug piece, and then promotes the intensity through the fixed stator module of magnetic insulation mounting.
In any of the above claims, preferably the stator yoke comprises an arcuate stator yoke; the radian of the third connecting lug pieces is smaller than that of the arc-shaped stator yoke part.
In this technical scheme, be less than the radian of arc stator yoke portion through the radian of injecing the third connection lug piece to prevent that the too big size of arc stator yoke portion that leads to of the radian of two connection lug pieces from being too short, and then cause the influence to stator winding.
In any of the above technical solutions, preferably, the magnetism isolating fixing member is an insulating fixing bolt; the second connection interface is evenly distributed along the circumferential direction of the mounting opening and is matched with the threaded hole of the insulating fixing bolt.
In addition, the insulating fixing piece can also be an insulating fixing rivet or an insulating fixing bolt.
In any of the above technical solutions, preferably, the method further includes: a rotor fixing bolt; a center hole is formed in the motor rotor, and the rotor fixing bolt can be matched with the center hole and the transmission rotating shaft respectively so that the motor rotor and the transmission rotating shaft can be fixedly assembled.
In any of the above technical solutions, preferably, the closed through hole is a closed threaded hole or a closed unthreaded hole.
In any of the above technical solutions, preferably, the diameter of the mounting opening is smaller than the outer diameter of the motor stator.
In this technical scheme, through the external diameter of injecing the diameter of installing port for being less than motor stator, because motor stator can use the stator module to fix a position the equipment as the unit, consequently when the installation, can not receive the influence of installation bore size, thereby when the diameter of installing port among the installation bore keeping and prior art is the same, increase motor stator's diameter, thereby can promote the overall dimension of motor, and then correspond the performance that improves other structures through the increase of overall dimension in order to reach the purpose that promotes motor operating efficiency.
In addition, the outer diameter of the rotor of the motor can be slightly smaller than that of the washing mounting opening, so that the purpose of conveniently dismounting the rotor of the motor is achieved.
In any of the above technical solutions, preferably, a radial distance between the magnetic isolation fixing member and an axis of the motor stator is greater than or equal to an inner diameter of the stator module.
In the technical scheme, the radial distance between the insulating fixing piece and the axis of the motor stator is limited to be larger than or equal to the inner diameter of the stator module, so that the insulating fixing piece is prevented from protruding inwards to cause interference on the operation of the motor rotor.
In a second aspect of the present invention, a washing machine is provided, including: a washing machine body; the motor assembly according to any one of the embodiments of the first aspect of the present invention is disposed in a washing machine body, wherein a transmission rotating shaft driven by a motor rotor to rotate is disposed in the washing machine, and a mounting opening of the motor assembly is opened at a back of the washing machine body.
One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages:
(1) under the condition that the opening of the washing machine box body is not changed, the inner rotor motor with large diameter and small thickness can be conveniently disassembled, so that the frame mold of the washing machine does not need to be changed, and the mold cost is saved.
(2) The modularized stator is adopted, and all modules are the same, so that the weight and the volume of spare parts are saved, convenience is brought to maintenance and spare part transportation and storage, and the corresponding cost is also reduced.
(3) When any module breaks down, only the corresponding module needs to be replaced, the whole motor stator does not need to be replaced, and the cost is saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view illustrating an exploded structure of a motor assembly part of a related art washing machine;
fig. 2 is a schematic view illustrating an exploded structure of a motor assembly part of a washing machine according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating an assembled structure of a motor assembly part of a washing machine according to an embodiment of the present invention;
FIG. 4 shows a schematic structural diagram of a stator module according to an embodiment of the invention;
FIG. 5 illustrates an assembled structural view of a stator module according to one embodiment of the present invention;
fig. 6 shows a schematic structural view of a stator module according to another embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:
102 rotor fixing bolts, 104 motor rotors, 106 stator fixing bolts, 108 motor stators, 110 washing machine outer cylinders, 112 transmission rotating shafts, 114 washing machine bodies, 20 stator modules, 30 motor rotors, 40 installation cavities, 402 transmission rotating shafts, 404 second connecting interfaces, 50 magnetic insulation fixing pieces, 60 rotor fixing bolts, 70 washing machine bodies and 202 first connecting interfaces.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A motor assembly according to some embodiments of the present invention is described below with reference to fig. 2 to 6.
As shown in fig. 2 to 6, a motor assembly according to an embodiment of the present invention includes: the motor comprises a motor stator and a motor rotor 30, wherein the motor stator comprises a plurality of stator modules 20 which are spliced along the circumferential direction, the stator modules 20 are provided with first connecting interfaces 202, and the motor rotor 30 is sleeved on the inner side of the motor stator; the mounting cavity 40 is provided with a mounting opening capable of being matched with a motor and used for accommodating the motor, a transmission rotating shaft 402 driven by the motor rotor 30 is arranged in the mounting cavity 40, a second connecting interface 404 used for positioning the stator module 20 is arranged on the inner wall of the mounting cavity 40, and the magnetism isolating fixing piece 50 is used for fixing the stator module 20 through the magnetism isolating fixing piece 50 after the first connecting interface 202 is matched with the second connecting interface 404 to assemble the stator module 20 on the inner wall, wherein the diameter of the mounting opening is larger than the outer diameter of the motor rotor 30.
In this embodiment, the motor is installed in the installation cavity 40, the motor is an inner rotor motor, the stator of the motor is formed by splicing a plurality of stator modules 20 spliced along the circumferential direction, the motor rotor 30 is fixed on the transmission rotating shaft 402, after the motor stator is powered on, the motor rotor 30 is driven to rotate under the driving of an electromagnetic field, and then the transmission rotating shaft 402 is driven to rotate, because the motor stator comprises a plurality of stator modules 20, and the stator modules 20 can be matched with the second connection interface 404 in the installation cavity 40 through the first connection interface 202 arranged on the stator modules and assembled in the installation cavity 40, compared with the prior art in which the motor stator is integrally assembled in the installation cavity 40, on one hand, when the motor stator fails, only the failed stator module 20 needs to be replaced without integrally replacing the motor stator due to the fact that the stator modules 20 are mutually detachable, therefore, the maintenance cost can be reduced, and on the other hand, the mode that the inner rotor motor is installed in the installation cavity 40 is also realized, so that the installation and the application of the inner rotor motor on electric equipment such as a washing machine and the like are realized.
The adjacent two stator modules 20 may have a connection relationship therebetween, or may be fixed in the fixed cavity without the connection relationship.
In addition, the motor assembly provided in the above embodiment of the present invention may further have the following additional technical features:
as shown in fig. 4 and 5, in the above embodiment, preferably, the plurality of stator modules 20 are formed by splicing and assembling any two adjacent stator modules 20.
In this embodiment, by providing the stator modules 20 as separate component structures, each stator module 20 is provided with a first connection interface 202, in order to achieve the assembly fixation between the stator modules 20 and the mounting cavity 40 through the first connection interface 202, compared with the prior art in which the motor stator is integrally assembled in the mounting cavity 40, when the motor stator breaks down, the stator modules 20 are mutually detachable, only the broken stator modules 20 are needed to be replaced, and the motor stator does not need to be integrally replaced, so that on one hand, the maintenance cost is favorably reduced, on the other hand, a modularized stator structure is adopted, when each stator module 20 is homomorphic, the weight and the volume of spare parts can be saved, convenience is brought to maintenance and spare part transportation and storage, and cost reduction can be realized.
The adjacent two stator modules 20 may have a connection relationship therebetween, or may be fixed in the fixed cavity without the connection relationship.
As shown in fig. 6, the plurality of stator modules 20 are integrally formed and manufactured without mechanical separation, and are also mechanically fixed in a radial direction, and during installation, the motor stator enters the installation hole at the side, is firstly positioned on the inner side wall of the installation cavity 40, is fixed on the inner side wall by using the radial bolt 50, and then is installed with the rotor.
In any of the above embodiments, preferably, the first connection interface 202 includes a first connection tab and a second connection tab respectively disposed at two circumferential ends of the stator module 20, the first connection tab and the second connection tab are located on different circumferential surfaces, and the first connection tab and the second connection tab are respectively provided with a radial closed through hole, wherein when two stator modules 20 are spliced with each other, two adjacent first connection tabs and second connection tabs can be overlapped and attached along a radial direction, and the two closed through holes are concentrically aligned, and the magnetic isolation fixing member 50 extends to the second connection interface 404 after passing through the closed through hole along the radial direction to fix the stator module 20.
In this embodiment, as a splicing manner of two stator modules 20, the first connection interface 202 includes two connection tabs respectively disposed at two ends of the stator module 20, that is, the first connection tab and the second connection tab, because the first connection tab and the second connection tab are disposed on different circumferential surfaces, when two stator modules 20 are spliced together, two adjacent first connection tabs and second connection tabs can be stacked together in a radial direction and are attached to each other, after attachment, the closed through hole on the first connection tab and the closed through hole on the second connection tab are overlapped with each other to serve as a mounting hole of an insulating fixing member, and the insulating fixing member extends into the second connection interface 404 through the mounting hole and is locked, so that the outer stator structure is assembled in the mounting cavity 40 in the form of the stator module 20, on the one hand, by radially stacking the first connection tab and the second connection tab and then mounting in the mounting cavity 40, on the premise of ensuring the normal operation of the motor, the installation strength of the motor stator is favorably improved, and on the other hand, the insulating fixing piece can be installed along the radial direction, so that the influence of the radial size of the installation cavity 40 and the radial size of the installation opening is small, namely the stator module 20 is larger than the installation opening and can also be smaller than the installation opening.
Wherein, as will be understood by those skilled in the art, the closed through hole may be a regular circular structure, which is matched with the magnetism isolating fixing member 50, and may also be an oblong structure, a square structure or other irregular hole structures.
In any of the above embodiments, preferably, the first connecting tab and the second connecting tab are disposed outside the inner annular surface of the stator module 20.
The sum of the thicknesses of the first and second connecting tabs is less than or equal to the radial thickness of the stator module 20.
In this embodiment, the first connection tab and the second connection tab are both disposed outside the inner annular surface of the stator module 20, so as to prevent the first connection tab and/or the second connection tab from protruding out of the inner annular surface of the stator module 20, which may cause interference to the operation of the motor rotor 30.
In any of the above embodiments, preferably, the stator yoke comprises an arcuate stator yoke; the radian of each of the first connecting lug and the second connecting lug is smaller than that of the arc-shaped stator yoke.
In this embodiment, the radian of the first connecting lug is limited to be smaller than that of the arc-shaped stator yoke, and the radian of the second lug is limited to be smaller than that of the arc-shaped stator yoke, so that the influence on the stator winding caused by the excessively short size of the arc-shaped stator yoke due to the excessively large radians of the two connecting lugs is prevented.
Preferably, the arc of the first connecting tab is the same as the arc of the second connecting tab.
As shown in fig. 4 and 5, in any of the above embodiments, preferably, the first connection interface 202 includes third connection tabs respectively disposed at two circumferential ends of the stator module 20, and a radial semicircular hole is formed at an edge of the third connection tab, where when two stator modules 20 are spliced together, adjacent semicircular holes can be correspondingly spliced to form a closed through hole, and the magnetism-insulating fixing member 50 radially penetrates through the closed through hole and then extends to the second connection interface 404 to fix the stator module 20.
In this embodiment, as another splicing manner of the two stator modules 20, two third connection lugs having the same structure and opposite directions are respectively disposed at two ends of the stator module 20, and when the two stator modules 20 are spliced along the circumferential direction, the two third connection lugs are butted with each other to form a circular closed through hole spliced by two semicircular holes, which is advantageous to reduce the overall quality of the motor stator when the distance between the two stator modules 20 is the same as compared with the above-mentioned manner of stacking the first connection lug and the second connection lug.
In any of the above embodiments, preferably, the third connection tab is disposed between the inner annular surface and the outer annular surface of the stator module 20; and the thickness of the third connecting tab is less than or equal to the radial thickness of the stator module 20.
In this embodiment, the third connection tab is disposed between the inner annular surface and the outer annular surface of the stator module 20, so that the third connection tab is prevented from protruding out of the inner annular surface of the stator module 20 to cause interference on the operation of the motor rotor 30, and the thickness of the third connection tab is reduced, thereby improving the strength of fixing the stator module 20 by the magnetism isolating fixing member 50.
In any of the above embodiments, preferably, the stator yoke comprises an arcuate stator yoke; the radian of the third connecting lug pieces is smaller than that of the arc-shaped stator yoke part.
In this embodiment, the radian of the third connecting lug is limited to be smaller than that of the arc-shaped stator yoke, so that the two connecting lugs are prevented from being too large in radian to cause the arc-shaped stator yoke to be too short in size, and further cause influence on the stator winding.
In any of the above embodiments, preferably, the magnetism isolating fixing member 50 is an insulating fixing bolt; the second connection interfaces 404 are threaded holes uniformly distributed along the circumferential direction of the mounting opening and matched with the insulating fixing bolts.
In addition, the insulating fixing piece can also be an insulating fixing rivet or an insulating fixing bolt.
In any of the above embodiments, preferably, the method further includes: rotor fixing bolts 60; the motor rotor 30 is provided with a central hole, and the rotor fixing bolt 60 can be respectively matched with the central hole and the transmission rotating shaft 402, so that the motor rotor 30 and the transmission rotating shaft 402 can be fixedly assembled.
In any of the above embodiments, preferably, the closed through hole is a closed threaded hole or a closed unthreaded hole.
In any of the above embodiments, as shown in fig. 3, preferably, the diameter of the mounting opening is smaller than the outer diameter of the stator of the motor.
In this embodiment, through the external diameter of restricting the diameter of installing the mouth to being less than motor stator, because motor stator can use stator module 20 to carry out the location equipment as the unit, consequently when the installation, can not receive the influence of installation bore size to when the installation bore keeps the diameter the same with the installing the mouth among the prior art, increase motor stator's diameter, thereby can promote motor's overall size, and then correspond the performance that improves other structures through the increase of overall size in order to reach the purpose that promotes motor operating efficiency.
In addition, the outer diameter of the rotor of the motor can be slightly smaller than that of the washing mounting opening, so that the purpose of conveniently dismounting the motor rotor 30 is achieved.
In any of the above embodiments, preferably, the radial distance between the magnetic isolation fixture 50 and the axial center of the motor stator is greater than or equal to the inner diameter of the stator module 20.
In this embodiment, by limiting the radial distance between the insulating fixture and the axial center of the motor stator to be greater than or equal to the inner diameter of the stator module 20, it is ensured that the insulating fixture does not protrude inward to cause interference with the operation of the motor rotor 30.
A washing machine according to an embodiment of the present invention includes: a washing machine body 70; the motor assembly as described in any of the above embodiments is disposed in the washing machine body 70, wherein the washing machine is provided with a transmission shaft 402 driven by the motor rotor 30 to rotate, and the mounting opening of the motor assembly is opened at the back of the washing machine body 70.
As shown in fig. 2 and 3, the motor is an inner rotor motor, the motor stator includes a plurality of stator modules 20, and the outer diameter of the motor stator is larger than that of the mounting opening formed in the washing machine body 70, so that the inner rotor motor with a large diameter and a small thickness can be used.
Further, the outer diameter of the rotor of the motor is slightly smaller than the outer diameter of the mounting opening formed on the washing machine body 70, so that the motor rotor 30 can be conveniently disassembled and assembled.
When the motor is disassembled and assembled, the rotor fixing bolt 60 is firstly screwed off, the motor rotor 30 is taken out along the axial direction, then the magnetism insulation fixing piece 50 of the stator module 20 is taken out along the radial direction towards the rotating shaft direction, and the stator modules 20 are taken out one by one along the radial direction inwards and outwards.
On the inner sidewall of the motor mounting cavity 40 of the washing machine, a plurality of second connection interfaces 404 are circumferentially disposed, and the second connection interfaces 404 are specifically radial threaded holes for positioning and fixing the stator module 20.
The internal structure of each stator module 20, depending on the actual electromagnetic structure and performance requirements, typically comprises silicon steel sheets, windings and appropriate mechanical structures, each stator module 20 has a corresponding power outlet, typically three-phase, which may be two-phase or one-phase, and the difference between the modules is preferably minimized, which may reduce the variety and number of spare parts, typically the same for each stator module 20.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An electric machine assembly, comprising:
the motor comprises a motor stator and a motor rotor, wherein the motor stator comprises a plurality of stator modules which are distributed along the circumferential direction, the stator modules are provided with first connecting interfaces, and the motor rotor is sleeved on the inner side of the motor stator;
the mounting cavity is provided with a mounting port which can be matched with the motor and is used for accommodating the motor, a transmission rotating shaft driven by a motor rotor is arranged in the mounting cavity, a second connecting interface used for positioning the stator module is arranged on the inner wall of the mounting cavity,
a magnetism-insulating fixing member for fixing the stator module by the magnetism-insulating fixing member after the first connection interface is matched with the second connection interface to assemble the stator module on the inner wall,
wherein the diameter of the mounting opening is larger than the outer diameter of the motor rotor.
2. The electric machine assembly of claim 1,
the plurality of stator modules are formed by splicing, assembling and constructing any two adjacent stator modules.
3. The electric machine assembly of claim 2,
the first connecting interface comprises a first connecting lug and a second connecting lug which are respectively arranged at the two circumferential ends of the stator module, the first connecting lug and the second connecting lug are positioned on different circumferential surfaces, and radial closed through holes are respectively arranged on the first connecting lug and the second connecting lug,
when the two stator modules are spliced with each other, the two adjacent first connection lug pieces and the second connection lug pieces can be overlapped and attached along the radial direction, the two closed through holes are aligned concentrically, the magnetism insulation fixing piece penetrates through the closed through holes along the radial direction and then extends to the second connection interface to fix the stator modules, and the first connection lug pieces and the second connection lug pieces are arranged on the outer side of the inner ring surface of the stator modules.
4. The electric machine assembly of claim 3,
the stator yoke comprises an arcuate stator yoke;
the radian of the first connecting lug and the radian of the second connecting lug are both smaller than the radian of the arc-shaped stator yoke part.
5. The electric machine assembly of claim 2,
the first connecting interface comprises third connecting lug pieces respectively arranged at two circumferential ends of the stator module, the edge of each third connecting lug piece is provided with a radial semicircular hole,
when the two stator modules are spliced with each other, the adjacent semicircular holes can be correspondingly spliced along the circumferential direction to form a closed through hole, the magnetism-insulating fixing piece penetrates through the closed through hole along the radial direction and then extends to the second connecting interface to fix the stator modules, and the third connecting lug piece is arranged between the inner annular surface and the outer annular surface of the stator modules.
6. The electric machine assembly of claim 5,
the stator yoke comprises an arcuate stator yoke;
the radians of the third connection lugs are all less than the radians of the arc-shaped stator yokes.
7. The electric machine assembly of claim 5,
the third connecting lug is arranged between the inner ring surface and the outer ring surface of the stator module; and is
The thickness of the third connecting lug is less than or equal to the radial thickness of the stator module.
8. The electric machine assembly of claim 1,
the magnetism insulation fixing piece is an insulation fixing bolt;
the second connecting interfaces are threaded holes which are uniformly distributed along the circumferential direction of the mounting opening and matched with the insulating fixing bolts.
9. The electric machine assembly of claim 1, further comprising:
a rotor fixing bolt;
the motor rotor is provided with a center hole, and the rotor fixing bolt can be respectively matched with the center hole and the transmission rotating shaft so as to enable the motor rotor to be fixedly assembled with the transmission rotating shaft.
10. The motor assembly of claim 3 or 6,
the closed through hole is a closed threaded hole or a closed unthreaded hole.
11. The electric machine assembly according to any of claims 1 to 9,
the diameter of the mounting opening is smaller than the outer diameter of the motor stator.
12. The electric machine assembly according to any of claims 1 to 9,
and the radial distance between the magnetism-insulating fixing piece and the axis of the motor stator is greater than or equal to the inner diameter of the stator module.
13. A washing machine, characterized by comprising:
a washing machine body;
the motor assembly of any one of claims 1 to 12, disposed within the washing machine body,
the washing machine is characterized in that a transmission rotating shaft driven to rotate by a motor rotor is arranged in the washing machine, and a mounting opening in the motor assembly is formed in the back of the washing machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912054.3A CN110858729A (en) | 2018-08-10 | 2018-08-10 | Motor assembly and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810912054.3A CN110858729A (en) | 2018-08-10 | 2018-08-10 | Motor assembly and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110858729A true CN110858729A (en) | 2020-03-03 |
Family
ID=69634794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810912054.3A Pending CN110858729A (en) | 2018-08-10 | 2018-08-10 | Motor assembly and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110858729A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE949416C (en) * | 1953-11-06 | 1956-09-20 | Chicago Pneumatic Tool Co | Process for the production of a stator structure of electrical machines with more than one pronounced pole pair |
| US20020008434A1 (en) * | 2000-07-24 | 2002-01-24 | Satoru Akutsu | Stator for starter motor |
| JP2009303362A (en) * | 2008-06-12 | 2009-12-24 | Mitsubishi Electric Corp | Rotary electric machine |
| US20150330010A1 (en) * | 2013-01-28 | 2015-11-19 | Amotech Co., Ltd. | Drive motor for drum washing machine, and drum washing machine having same |
| EP3035491A1 (en) * | 2013-11-08 | 2016-06-22 | Samsung Electronics Co., Ltd. | Motor, manufacturing method thereof, and washing machine |
| WO2018043651A1 (en) * | 2016-09-02 | 2018-03-08 | 日本電産株式会社 | Stator, stator manufacturing method and motor |
| CN107994692A (en) * | 2017-12-11 | 2018-05-04 | 广东威灵电机制造有限公司 | Motor stator and there is its motor |
-
2018
- 2018-08-10 CN CN201810912054.3A patent/CN110858729A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE949416C (en) * | 1953-11-06 | 1956-09-20 | Chicago Pneumatic Tool Co | Process for the production of a stator structure of electrical machines with more than one pronounced pole pair |
| US20020008434A1 (en) * | 2000-07-24 | 2002-01-24 | Satoru Akutsu | Stator for starter motor |
| JP2009303362A (en) * | 2008-06-12 | 2009-12-24 | Mitsubishi Electric Corp | Rotary electric machine |
| US20150330010A1 (en) * | 2013-01-28 | 2015-11-19 | Amotech Co., Ltd. | Drive motor for drum washing machine, and drum washing machine having same |
| EP3035491A1 (en) * | 2013-11-08 | 2016-06-22 | Samsung Electronics Co., Ltd. | Motor, manufacturing method thereof, and washing machine |
| WO2018043651A1 (en) * | 2016-09-02 | 2018-03-08 | 日本電産株式会社 | Stator, stator manufacturing method and motor |
| CN107994692A (en) * | 2017-12-11 | 2018-05-04 | 广东威灵电机制造有限公司 | Motor stator and there is its motor |
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Application publication date: 20200303 |
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